CN112629081A - Material taking device for bromine trifluoride treatment of unit - Google Patents
Material taking device for bromine trifluoride treatment of unit Download PDFInfo
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- CN112629081A CN112629081A CN202011594093.7A CN202011594093A CN112629081A CN 112629081 A CN112629081 A CN 112629081A CN 202011594093 A CN202011594093 A CN 202011594093A CN 112629081 A CN112629081 A CN 112629081A
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- container
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- deep cooling
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/24—Inter-halogen compounds
Abstract
The invention belongs to the technical field of isotope separation, and particularly relates to a unit bromine trifluoride treatment material taking device which comprises a vacuum pump a, a vacuum pump b, a freezer a, a freezer b, a container a, a container b, a container c, a container d, a container e, a container f, a container g, a container h, a container i, a deep cooling box a, a deep cooling box b, a deep cooling box c, a deep cooling box d, a deep cooling box e, a deep cooling box f, a deep cooling box g, a deep cooling box h, a deep cooling box i, a material receiving pipeline, an outlet pipeline, a vacuumizing pipeline and a tail gas pipeline. The invention can realize the continuity of the treatment process and the conversion and control of the working conditions of the treatment process, and is provided with a reliable safety interlocking device to ensure the safety of the unit in the treatment process.
Description
Technical Field
The invention belongs to the technical field of isotope separation, and particularly relates to a unit bromine trifluoride treatment material taking device.
Background
With the centrifugal cascade operation, more and more solid powder is accumulated in the system pipeline and the host machine. The physical and chemical analysis of the solid powder inside the host machine shows that the solid powder is mainly uranyl fluoride. The powder causes serious reduction of host separation performance. Therefore, the bromine trifluoride cleaning of the unit is carried out, and the working efficiency of centrifugal cascade is recovered. The unit cleans bromine trifluoride and needs to use an independent system for material taking, and the existing system in a cascade factory cannot meet the requirement.
Therefore, a need exists for a bromine trifluoride treatment material taking device with a set, which solves the shortcomings of the prior art.
Disclosure of Invention
The invention aims to provide a machine set bromine trifluoride treatment material taking device, which solves the problems that in the prior art, a Freon device is used for a material taking system to share a vacuum pump, and continuous evacuation during material receiving cannot be ensured in the using process; the quantity of the material taking containers is small, and the collection of bromine trifluoride, bromine gas and uranium hexafluoride in the bromine trifluoride treatment process cannot be met; meanwhile, the original material taking system cannot realize three-level series connection refrigeration and cannot meet the material receiving condition.
The technical scheme for realizing the purpose of the invention is as follows:
a bromine trifluoride process take off unit comprising: the device comprises a vacuum pump a, a vacuum pump b, a freezer a, a freezer b, a container a, a container b, a container c, a container d, a container e, a container f, a container g, a container h, a container i, a deep cooling box a, a deep cooling box b, a deep cooling box c, a deep cooling box d, a deep cooling box e, a deep cooling box f, a deep cooling box g, a deep cooling box h, a deep cooling box i, a material receiving pipeline, an outlet pipeline, a vacuumizing pipeline and a tail gas pipeline;
the front ends of the vacuum pump a and the vacuum pump b are respectively connected with an evacuation pipeline, the rear ends of the vacuum pump a and the vacuum pump b are respectively connected with a tail gas pipeline, the outlet of the freezer a is connected with the evacuation pipeline, the inlet of the freezer a is connected with the outlet pipeline, the outlet of the freezer b is connected with the evacuation pipeline, and the inlet of the freezer b is connected with the outlet pipeline; the container a, the container b, the container c, the container d, the container e, the container f, the container g, the container h and the container i are respectively installed inside the deep cooling box a, the deep cooling box b, the deep cooling box c, the deep cooling box d, the deep cooling box e, the deep cooling box f, the deep cooling box g, the deep cooling box h and the deep cooling box i, the inlet of each container is respectively connected with a material receiving pipeline, and the outlet of each container is connected with an outlet pipeline.
An electric valve a and a hand valve a are sequentially arranged between the vacuum pump a and the evacuation pipeline.
And an electric valve b and a hand valve b are sequentially arranged between the vacuum pump b and the evacuation pipeline.
The outlet of the freezer a is connected with an evacuation pipeline, a vacuum hand valve is arranged in the middle of the freezer a, the inlet of the freezer a is respectively connected with the outlet pipeline, and two vacuum hand valves are sequentially arranged in the middle of the freezer a.
The outlet of the freezer b is connected with an evacuation pipeline, a vacuum hand valve is arranged in the middle of the freezer b, the inlet of the freezer b is respectively connected with the outlet pipeline, and two vacuum hand valves are sequentially arranged in the middle of the freezer b.
The inlets of the container a, the container b, the container c, the container d, the container e, the container f, the container g, the container h and the container i are respectively connected with a material receiving pipeline, and two vacuum hand valves are arranged between each container and the material receiving pipeline.
Outlets of the container a, the container b, the container c, the container d, the container e, the container f, the container g, the container h and the container i are respectively connected with outlet pipelines, and two vacuum hand valves are arranged between each container and each outlet pipeline.
The leftmost side of the material receiving pipeline is connected with a vacuum electric valve and an electric control valve, and then is connected with a system material receiving main pipe through a hand valve 14.
The diameters of the material receiving pipeline, the outlet pipeline, the evacuation pipeline and the tail gas pipeline are 65mm respectively.
The material taking method of the machine set bromine trifluoride processing material taking device comprises the following steps:
adding liquid nitrogen into a freezer a and a freezer b for fully freezing, setting a deep cooling box a, a deep cooling box b, a deep cooling box c, a deep cooling box d, a deep cooling box e and a deep cooling box f, in which the container a, the container b, the container c, the deep cooling box d, the deep cooling box e and the deep cooling box f are located, at-80 to-100 ℃, judging that the containers in the freezer a, the freezer b, the container a, the container b, the container c, the container d, the container e and the container f are qualified in vacuum after the temperature meets the requirement, and putting the containers into operation and standby;
step two, starting a vacuum pump a, opening an electric valve a and a hand valve a before the pump, opening a valve of a 24L container in a freezer a, opening valves of a 50L container in the container a, the container b and the container c, and connecting the valves in series;
and thirdly, materials generated in the unit bromine trifluoride treatment process enter a vacuum electric valve through a pipeline to enter a material taking system, the working condition of the unit is controlled through an electric regulating valve, bromine trifluoride, bromine gas and uranium hexafluoride in the unit pipeline are fully frozen through a container a, a container b and a container c, hydrogen fluoride is frozen in a freezer a, and other gases which are not easy to condense, such as oxygen and the like, are pumped into a tail gas pipeline through a vacuum pump a to enter a tail gas system.
The invention has the beneficial technical effects that:
the invention can realize the continuity of the treatment process and the conversion and control of the working conditions of the treatment process, and is provided with a reliable safety interlocking device to ensure the safety of the unit in the treatment process.
Drawings
FIG. 1 is a schematic diagram of a bromine trifluoride treatment take-off unit of a unit provided by the present invention;
in the figure: 1-vacuum pump a; 2-vacuum pump b; 3-freezer a; 4-freezer b; 5-container a; 6- -Container b; 7-container c; 8-container d; 9-container e; 10-container f; 11-container g; 12-container h; 13-container i; 14-vacuum hand valve; 15-electric regulating valve; 16-vacuum motorised valve; 17-cryogenic box a; 18-deep cooling box b; 19-a cryogenic box c; 20-deep cooling box d; 21-a cryogenic box e; 22-deep cooling box f; 23-deep cooling box g; 24-deep cooling box h; 25-a deep cooling box i; 26-a material receiving pipeline; 27-an outlet duct; 28-evacuation of the piping; 29-a tail gas pipeline; 30-hand valve a; 31-hand valve b; 32-electrovalve a; 33-electrovalve b.
Detailed Description
In order to make those skilled in the art better understand the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention. It should be apparent that the embodiments described below are only some, but not all, of the embodiments of the present invention. All other embodiments that can be derived by a person skilled in the art from the embodiments described herein without inventive step are within the scope of the present invention.
As shown in fig. 1, the invention provides a unit bromine trifluoride processing and reclaiming device, which comprises: vacuum pump a1, vacuum pump b2, freezer a3, freezer b4, container a5, container b6, container c7, container d8, container e9, container f10, container g11, container h12, container i13, vacuum hand valve 14, electric control valve 15, vacuum electric valve 16, deep cooling box a17, deep cooling box b18, deep cooling box c19, deep cooling box d20, deep cooling box e21, deep cooling box f22, deep cooling box g23, deep cooling box h24, deep cooling box i25, receiving pipe 26, outlet pipe 27, evacuation pipe 28, tail gas pipe 29, hand valve a30, hand valve b31, electric valve a32 and electric valve b 33.
The front ends of a vacuum pump a1 and a vacuum pump b2 are respectively connected with an evacuation pipeline 28 through flanges, an electric valve a32 and a hand valve a30 are sequentially arranged between the vacuum pump a1 and the evacuation pipeline 28, an electric valve b33 and a hand valve b31 are sequentially arranged between the vacuum pump b2 and the evacuation pipeline 28, the rear ends of the vacuum pump a1 and the vacuum pump b2 are respectively connected with an exhaust pipeline 29 through flanges, and the left side of the exhaust pipeline 29 is connected with an exhaust system; the outlet of the freezer a3 is connected with an evacuation pipeline 28, the middle of the freezer a3 is provided with a vacuum hand valve 14, the inlet of the freezer a3 is connected with an outlet pipeline 27, the middle of the freezer a3 is sequentially provided with two vacuum hand valves 14, the outlet of the freezer b4 is connected with the evacuation pipeline 28, the middle of the freezer a 4 is provided with a vacuum hand valve 14, the inlet of the freezer a3 is connected with the outlet pipeline 27, and the middle of the freezer a3 is sequentially; the container a5, the container b6, the container c7, the container d8, the container e9, the container f10, the container g11, the container h12 and the container i13 are respectively installed inside a deep cooling box a17, a deep cooling box b18, a deep cooling box c19, a deep cooling box d20, a deep cooling box e21, a deep cooling box f22, a deep cooling box g23, a deep cooling box h24 and a deep cooling box i25, each container inlet is respectively connected with the material receiving pipeline 26 through a flange, two vacuum hand valves 14 are arranged between each container and the material receiving pipeline 26, each container outlet is connected with the outlet pipeline 27, and two vacuum hand valves 14 are arranged between each container and the outlet pipeline 27;
the leftmost side of the material receiving pipeline 26 is connected with the vacuum electric valve 16 and the electric regulating valve 15, and then is connected with the system material receiving main pipe through the hand valve 14.
The diameter of the material receiving pipeline 26, the diameter of the outlet pipeline 27, the diameter of the evacuation pipeline 28 and the diameter of the tail gas pipeline 29 are 65mm, and before the material receiving pipeline 26, the diameter of the outlet pipeline 27 and the diameter of the evacuation pipeline 28 are put into operation, the vacuum measurement is ensured to be qualified, and the material is pumped to be below 6.67Pa through a vacuum pump a1 or a vacuum pump b 2.
The machine set bromine trifluoride treatment material taking system is provided with three groups of containers, wherein a5, a b6 and a c7 are in one group, a d8, an e9 and a f10 are in one group, a g11, a h12 and a i13 are in one group, three-stage freezing in the material receiving process is realized, and meanwhile, one group of work and two groups of standby are met, so that bromine trifluoride, uranium hexafluoride and bromine gas in the treatment process are collected, and the temperature control ranges of a deep cooling box a17, a deep cooling box b18, a deep cooling box c19, a deep cooling box d20, a deep cooling box e21, a deep cooling box f22, a deep cooling box g23, a deep cooling box h24 and a deep cooling box i25 are-80 ℃ to-120 ℃.
When each group of containers works in series, the vacuum hand valves 14 of the first and second containers connected with the outlet pipeline 27 are closed, the vacuum hand valves 14 of the second and third containers connected with the receiving pipeline 26 are closed, and the other 10 vacuum hand valves 14 of the containers in the group are opened. All vacuum hand valves 14 of the other two groups of spare containers are kept closed, and corresponding valves are opened according to a serial line when access work is needed. The freezer a3 and the freezer b4 are used for collecting hydrogen fluoride generated in the treatment process, one container is used for working, the other container is used for standby, and the temperature of the freezer is controlled to be-196 ℃ by adding liquid nitrogen.
When the freezer is working, two vacuum hand valves 14 connecting the working freezer with the outlet pipeline 27 and one vacuum hand valve 14 connecting the freezer with the evacuation pipeline 28 are opened.
The vacuum pump a1 and the vacuum pump b2 are operated one by one for standby, and are used for continuously evacuating the gases which are difficult to be frozen, such as oxygen generated in the process.
The electric control valve 15 is used for controlling the pressure of the unit lean material main pipe in the treatment process.
An electric valve a32 and an electric valve b33 are arranged in front of the vacuum pump a1 and the vacuum pump b2 and are used for quickly cutting off the vacuum pump a1, the vacuum pump b2 and the material taking system.
During the bromine trifluoride treatment of the unit, the vacuum pump a1, the freezer a3, the container a5, the container b6 and the container c7 are operated during normal operation, and the vacuum pump b2, the freezer b4, the container d8, the container e9 and the container f10 are reserved.
The invention also provides a material taking method of the machine set bromine trifluoride processing material taking device, which comprises the following steps:
step 1, adding liquid nitrogen into a freezer a3 and a freezer b4 for full freezing, setting a17 of a cryogenic box where a container a5, a container b6, a container c7, a container d8, a container e9 and a container f10 are located, a cryogenic box b18, a cryogenic box c19, a cryogenic box d20, a cryogenic box e21 and a cryogenic box f22 to be-80 to-100 ℃, judging that the inner containers of the freezer a3, the freezer b4, the container a5, the container b6, the container c7, the container d8, the container e9 and the container f10 are qualified in vacuum after the temperature reaches the requirement, and putting the container into operation and standby.
And 2, starting a vacuum pump a1, opening a pre-pump electric valve a32 and a hand valve a30, opening a 24L container valve in a freezer a3, opening a container a5, a container b6 and a 50L container valve in a container c7, and connecting the containers in series.
And 3, materials generated in the unit bromine trifluoride treatment process enter a vacuum electric valve 16 through a pipeline to enter a material taking system, the unit working condition is controlled through an electric regulating valve 15, and meanwhile, the working condition can be adjusted according to the treatment condition. Bromine trifluoride, bromine gas and uranium hexafluoride in the pipeline of the unit are fully frozen through a container a5, a container b6 and a container c7, while hydrogen fluoride is frozen in a freezer a3, and oxygen and other gases which are not easy to condense are pumped into a tail gas pipeline 29 through a vacuum pump a1 to enter a tail gas system.
When equipment breaks down or the containers reach the loading capacity, the equipment can be switched to a standby group to work in time, and the continuity of the material receiving process is ensured.
The present invention has been described in detail with reference to the drawings and examples, but the present invention is not limited to the examples, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention. The prior art can be adopted in the content which is not described in detail in the invention.
Claims (10)
1. The utility model provides a extracting device is handled to unit bromine trifluoride which characterized in that: the device includes: the device comprises a vacuum pump a (1), a vacuum pump b (2), a freezer a (3), a freezer b (4), a container a (5), a container b (6), a container c (7), a container d (8), a container e (9), a container f (10), a container g (11), a container h (12), a container i (13), a deep cooling box a (17), a deep cooling box b (18), a deep cooling box c (19), a deep cooling box d (20), a deep cooling box e (21), a deep cooling box f (22), a deep cooling box g (23), a deep cooling box h (24), a deep cooling box i (25), a material receiving pipeline (26), an outlet pipeline (27), an evacuation pipeline (28) and a tail gas pipeline (29);
the front ends of a vacuum pump a (1) and a vacuum pump b (2) are respectively connected with an evacuation pipeline (28), the rear ends of the vacuum pump a (1) and the vacuum pump b (2) are respectively connected with a tail gas pipeline (29), an outlet of a freezer a (3) is connected with the evacuation pipeline (28), an inlet is connected with an outlet pipeline (27), an outlet of a freezer b (4) is connected with the evacuation pipeline (28), and the inlet is connected with the outlet pipeline (27); the container a (5), the container b (6), the container c (7), the container d (8), the container e (9), the container f (10), the container g (11), the container h (12) and the container i (13) are respectively installed inside the deep cooling box a (17), the deep cooling box b (18), the deep cooling box c (19), the deep cooling box d (20), the deep cooling box e (21), the deep cooling box f (22), the deep cooling box g (23), the deep cooling box h (24) and the deep cooling box i (25), a material receiving pipeline (26) is respectively connected to each container inlet, and an outlet pipeline (27) is connected to each container outlet.
2. A unit bromine trifluoride process take off device as in claim 1 wherein: an electric valve a (32) and a hand valve a (30) are sequentially arranged between the vacuum pump a (1) and the evacuation pipeline (28).
3. A unit bromine trifluoride process take off device as in claim 2 further comprising: an electric valve b (33) and a hand valve b (31) are sequentially arranged between the vacuum pump b (2) and the evacuation pipeline (28).
4. A unit bromine trifluoride process take off device according to claim 3, wherein: the outlet of the freezer a (3) is connected with an evacuation pipeline (28), a vacuum hand valve (14) is arranged in the middle, the inlet of the freezer a is respectively connected with an outlet pipeline (27), and two vacuum hand valves (14) are sequentially arranged in the middle.
5. A unit bromine trifluoride process take off device according to claim 4, wherein: the outlet of the freezer b (4) is connected with an evacuation pipeline (28), a vacuum hand valve (14) is arranged in the middle, the inlet of the freezer b is respectively connected with an outlet pipeline (27), and two vacuum hand valves (14) are sequentially arranged in the middle.
6. A unit bromine trifluoride process take off device according to claim 5, wherein: the inlet of the container a (5), the inlet of the container b (6), the inlet of the container c (7), the inlet of the container d (8), the inlet of the container e (9), the inlet of the container f (10), the inlet of the container g (11), the inlet of the container h (12) and the inlet of the container i (13) are respectively connected with a material receiving pipeline (26), and two vacuum hand valves (14) are arranged between each container and the material receiving pipeline (26).
7. A unit bromine trifluoride process take off device according to claim 6, wherein: outlets of the container a (5), the container b (6), the container c (7), the container d (8), the container e (9), the container f (10), the container g (11), the container h (12) and the container i (13) are respectively connected with an outlet pipeline (27), and two vacuum hand valves (14) are arranged between each container and the outlet pipeline (27).
8. A unit bromine trifluoride process take off device according to claim 7, wherein: the leftmost side of the material receiving pipeline (26) is connected with a vacuum electric valve (16) and an electric regulating valve (15), and then the material receiving pipeline is connected with a system material receiving main pipe through a hand valve 14.
9. A unit bromine trifluoride process take off device according to claim 8, wherein: the diameters of the material receiving pipeline (26), the outlet pipeline (27), the evacuation pipeline (28) and the tail gas pipeline (29) are 65mm respectively.
10. The method of claim 9 wherein the method comprises the steps of: the method comprises the following steps:
step one, adding liquid nitrogen into a freezer a (3) and a freezer b (4) for fully freezing, setting a deep cooling box a (17), a deep cooling box b (18), a deep cooling box c (19), a deep cooling box d (20), a deep cooling box e (21) and a deep cooling box f (22) where the container a (5), the container b (6), the container c (7), the container d (8), the container e (9) and the container f (10) are located at-80 ℃ to-100 ℃, judging that the containers in the freezer a (3), the freezer b (4), the container a (5), the container b (6), the container c (7), the container d (8), the container e (9) and the container f (10) are qualified in vacuum after the temperature reaches the requirement, and putting the containers into work and standby;
step two, starting a vacuum pump a (1), opening a pre-pump electric valve a (32) and a hand valve a (30), opening a 24L container valve in a freezer a (3), opening a 50L container valve in a container a (5), a container b (6) and a container c (7), and connecting the containers in series;
and step three, substances generated in the unit bromine trifluoride treatment process enter a vacuum electric valve (16) through a pipeline to enter a material taking system, the working condition of the unit is controlled through an electric control valve (15), bromine trifluoride, bromine gas and uranium hexafluoride in the unit pipeline are fully frozen through a container a (5), a container b (6) and a container c (7), hydrogen fluoride is frozen in a freezer a (3), and other gases which are difficult to condense, such as oxygen, and the like are pumped into a tail gas pipeline (29) through a vacuum pump a (1) to enter a tail gas system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011594093.7A CN112629081A (en) | 2020-12-29 | 2020-12-29 | Material taking device for bromine trifluoride treatment of unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011594093.7A CN112629081A (en) | 2020-12-29 | 2020-12-29 | Material taking device for bromine trifluoride treatment of unit |
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| CN112629081A true CN112629081A (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011594093.7A Withdrawn CN112629081A (en) | 2020-12-29 | 2020-12-29 | Material taking device for bromine trifluoride treatment of unit |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5567887A (en) * | 1994-03-10 | 1996-10-22 | Texas Instruments Incorporated | Anhydrous ammonia gas sampler and concentration system |
| CN2408420Y (en) * | 1999-12-29 | 2000-11-29 | 华北电力大学 | Condenser air pumping pipe device |
| US20180030576A1 (en) * | 2016-07-28 | 2018-02-01 | Terrapower, Llc | Uranium hexafluoride off-gas treatment system and method |
| CN109420646A (en) * | 2017-09-04 | 2019-03-05 | 中核陕西铀浓缩有限公司 | A kind of uranium enriching plant's gas bubbling device and blow-washing method |
-
2020
- 2020-12-29 CN CN202011594093.7A patent/CN112629081A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5567887A (en) * | 1994-03-10 | 1996-10-22 | Texas Instruments Incorporated | Anhydrous ammonia gas sampler and concentration system |
| CN2408420Y (en) * | 1999-12-29 | 2000-11-29 | 华北电力大学 | Condenser air pumping pipe device |
| US20180030576A1 (en) * | 2016-07-28 | 2018-02-01 | Terrapower, Llc | Uranium hexafluoride off-gas treatment system and method |
| CN109420646A (en) * | 2017-09-04 | 2019-03-05 | 中核陕西铀浓缩有限公司 | A kind of uranium enriching plant's gas bubbling device and blow-washing method |
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Application publication date: 20210409 |
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